Debye and coworkers [1]} showed that the derivative of the two-point correlation function at the origin is proportional to the specific surface \(s\)  for three-dimensional isotropic media. This property has been generalized to anisotropic media [2]} as well as \(d\) -dimensional media [3]}, which is written as
\(\frac{dS_2^{(i)}}{dr}\Big \vert _{r=0} = -\frac{\omega _{d-1}}{\omega _d d}s,\) 
